One flying south to finish delivery work? (5)
I believe the answer is:
stork
'finish delivery work?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'one flying south to' is the wordplay.
I cannot really see how this works, but
'south' could be 's' (abbreviation) and 's' is located in the answer.
'to' is within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stork that I've seen before include "Long-legged bird" , "Mythological baby-bringer" , "The baby bird, so to speak" , "Baby-carrying bird?" , "Large wading bird" .)